On Wed, Apr 24, 2013 at 06:45:27PM +0400, Juliusz Chroboczek wrote:
> > +    /* Ignore cached routes, advertised by some kernels (linux 3.x). */
> > +    if(rtm->rtm_flags & RTM_F_CLONED)
> > +      return 0;
> > +
> 
> Grr.  "We don't break userspace."  Yeah, right.
> 
> Question -- why I am not seeing this issue?

Which kernel are you using? Does this small program [1] reports any
route change when you contact IPv6 hosts?

> Question -- is this serious enough to warrant another 1.3 branch
> release?  How many people are seeing this?

As discussed previously, this causes a lot of /128 routes to be marked
as unreachable for some time, on *all* babel nodes. This can be quite
annoying.

Also note that the man page first mentions "redistribute metric 256"
as a way to redistribute external routes, which doesn't filter out the
faulty routes.

[1] http://paste.isomorphis.me/3SL

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